Redox分辨的問題

2007-08-26 4:13 am
2PbCO3 + [C] -----> 2Pb + 3CO2

請問這化學式中的[C]是進行了oxidation還是reduction?
請作詳盡解釋,多謝

回答 (2)

2007-08-26 4:36 am
✔ 最佳答案
oxidation...
because C 由 0 to +4,ON increase,so係oxidation..
2PbCO3 + [C] -----> 2Pb + 3CO2
+2+4-2 [0] 0 [+4]-2
2007-08-27 1:17 am
The oxidation number of C in the left hand side = 0

The oxidation number of C in CO2 in the right hand side = +4

As the oxidation number of C increases from 0 to +4, so it is oxidized and oxidation is carried out on C.


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